Watch List notes:

Abbasid, temp. al-Rashid/al-Ma'mun, mule dinar, 1xx, obv., citing al-Hasan with letter 'ayn below, rev., citing Khalid, 3.91g (Bernardi types 102/70), decade and unit of date illegible, fine to good fine and apparently unpublished. This would appear to be a muling of an obverse die of al-Ma'mun, used on coins dated 200-201h, combined with an old reverse die of al-Rashid citing Khalid – a one-year type known for 187h only.
(400-600 GBP)